mecking93: I'm brazilian, so, ignore my english's mistakes. Let's go:
I will use 26...Rh6,cause then there are just three moves for the white: 27.h3 or Bh3 or Nxf3 if not, mate in 1.Analizing this moves:
If 27.h3 Qxh3;28.Bxh3 Rh3++
If 27.Nxf3 Nxf3;28.Bxh3 Qxh2++
If 27. Bh3 Qxh3;28.Rg2 ...